iRobot Roomba Plus 405 Combo vs iRobot Roomba Plus 575 Combo + AutoWash Dock
Researched by Riley Hart · prices checked Oct 31, 2026
As of Oct 31, 2026, the iRobot Roomba Plus 405 Combo costs $800 and the iRobot Roomba Plus 575 Combo + AutoWash Dock costs $800. The iRobot Roomba Plus 575 Combo + AutoWash Dock has a published review score and ranks #23 in our robot vacuums ranking; the iRobot Roomba Plus 405 Combo is not scored yet. Pick the iRobot Roomba Plus 405 Combo for hard floor homes on a deep discount. Pick the iRobot Roomba Plus 575 Combo + AutoWash Dock for small homes with tight furniture gaps.
- Suction
- iRobot claims 70x
- Navigation
- ClearView LiDAR
- Mopping
- DualClean spinning pads
The Plus 405 Combo gives you LiDAR mapping, lifting spin mops and a dock that empties and washes pads for about $800. Both independent tests we read were unimpressed: weak measured suction, poor carpet and pet hair results, wet floors and no obstacle avoidance. Hard floor homes that want the iRobot app can consider it on a deep sale; most buyers should compare other docks first.
Full iRobot Roomba Plus 405 Combo review →- Suction
- 25,000 Pa
- Navigation
- ClearView Pro LiDAR
- Mopping
- Yes
- Runtime
- About 180 min from
A compact Roomba that adds an AI camera and a solution dosing hot wash dock to the 400 series formula. European testers found navigation quick and precise and mopping fine for daily spills, but weak on dried stains, and hair wraps the brushes. Pick it for tight spaces with some clutter; skip it if you need deep carpet cleaning.
Full iRobot Roomba Plus 575 Combo + AutoWash Dock review →Side by side
| iRobot Roomba Plus 405 Combo | iRobot Roomba Plus 575 Combo + AutoWash Dock | |
|---|---|---|
| Price | $800 | $800 |
| 3 year cost | $800 | $800 |
| Our score | Not scored yet | 6.9/10 |
| Rank in Floors | #66 | #23 |
| Status | on sale | on sale |
| Warranty | n/a | n/a |
| Suction | iRobot claims 70x the suction of Roomba 600 series, with 4 levels; Vacuum Wars measured 0.13 kPa against a 0.83 kPa average | 25,000 Pa with four levels (Android.com.pl); iRobot's US page says 3.5X the Roomba Plus 505 Combo |
| Navigation | ClearView LiDAR, maps about 1,000 sq ft in 9 minutes and stores up to 4 maps (iRobot); Vacuum Wars measured 0.76 m2/min against a 0.70 average | ClearView Pro LiDAR with PrecisionVision AI, up to 5 maps, about 9 min to map (iRobot); Netzwelt found it fast and precise |
| Obstacle avoidance | No obstacle avoidance sensors (Vacuum Wars); BestReviews saw it tangle on cords twice in one run | PrecisionVision AI recognizes cords, socks and pet waste (iRobot); Android.com.pl saw it avoid cables, laces and toys, while Netzwelt saw it sometimes drive over cables |
| Mopping | DualClean spinning pads at 200 RPM with SmartScrub and auto lift on carpet (iRobot); Vacuum Wars scored 145 on dried stains against a 93 average but found it left 5.20 g of water against a 1.01 g average | Yes, DualClean spinning pads at 180 RPM with SmartScrub, a 30 mm edge extension and 10 mm rug lift (iRobot); Netzwelt saw it fail on dried ketchup |
| Self empty | Yes, bagged, up to 75 days based on one run per week (iRobot) | Yes, AllergenLock bag that lasts up to 3 months (iRobot); Android.com.pl lists a 2.5 L bag |
| Dock features | AutoWash dock empties the bin, washes and dries the pads and runs a self cleaning water cycle (iRobot); Vacuum Wars notes no hot water wash or hot air drying | Empties, washes pads at 167°F, dries at 113°F and refills with StayClean solution for up to 40 days (iRobot US page); Android.com.pl's European unit listed 60°C washing and 3.6 L clean and 3.2 L dirty tanks |
| Dustbin | 0.1 gal robot bin (Best Buy listing) | 180 ml robot bin and 80 ml water tank (Android.com.pl) |
| Height | 4.2 in; robot is 14.1 x 13.8 x 4.2 in and 9.06 lb (iRobot) | 4.2 in on iRobot's US page; Netzwelt and Android.com.pl list 8.3 cm (3.3 in), so check before buying for low furniture |
| Pet hair | Vacuum Wars measured 50% flattened pet hair pickup on carpet against a 66% average and 17% hair wrap; BestReviews saw 90% to 95% faux fur pickup on hard floors but under 50% on carpet | Netzwelt and Android.com.pl both saw long hair wrap the main and side brushes |
| App | Roomba Home app with routines, Clean Zones and Keep Out Zones; works with Alexa, Siri and Google Assistant (iRobot); Vacuum Wars and BestReviews called the app buggy or basic | Roomba Home app with schedules, rooms and no go zones; Alexa, Siri and Google Assistant (iRobot); Android.com.pl saw frequent offline drops on 2.4 GHz Wi-Fi |
| Noise | Dock emptying measured 87.8 dBA by Vacuum Wars and 80 to 85 dB by BestReviews | n/a |
| Runtime | n/a | About 180 min from a 5,200 mAh battery (Android.com.pl); iRobot's US page lists no runtime |
| Threshold | n/a | Up to 35 mm (iRobot); Android.com.pl's text says 30 mm |
| Weight | n/a | 9.44 lb robot on iRobot's US page |
| Best for | hard floor homes on a deep discount | small homes with tight furniture gaps |
| Skip if | you have carpet, pets or cables on the floor | you need deep carpet cleaning |
Specs are maker claims unless a reviewer is named. Prices from the stores we link, checked daily.
What reviewers found
iRobot Roomba Plus 405 Combo
- Vacuum Wars (1.66 Vacuum Wars stars): Measured 0.13 kPa suction and 10 CFM airflow against 0.83 kPa and 16 CFM averages, 58% carpet deep clean against 75%, 50% flattened pet hair against 66%, and 5.20 g of water left behind. Dried stain score of 145 beat the 93 average. Called it a letdown. Source
- BestReviews: Tested in a 1,000 sq ft two level apartment. Picked up 90% to 95% of faux fur on hard floors but under 50% on carpet, spread spilled water, tangled on cords twice in one run, and the dock measured 80 to 85 dB when emptying. Testers did not recommend it. Source
iRobot Roomba Plus 575 Combo + AutoWash Dock
- Netzwelt (Germany): Picked up 29.1 g of 30 g of test dirt. Fast, precise navigation, cleaned under radiators, handled dried coffee but failed on dried ketchup, and sometimes drove over cables. Hair wrapped both brushes. Source
- Android.com.pl (Poland) (7.8/10): Navigation never failed and it avoided cables, laces and toys. Very good on hard floors, weaker on fine flour in carpet even after two passes. Used about a low teens percent of battery on about 25 m². Repeated Wi-Fi drops in the app. Source
Pros and cons
iRobot Roomba Plus 405 Combo
Pros
- Dock empties, washes and dries mop pads
- LiDAR maps quickly and stores 4 maps
- Mop pads lift on carpet
- Single brush roll resisted hair wrap in testing
Cons
- Very low measured suction
- Poor carpet and pet hair pickup
- No obstacle avoidance
- Leaves floors wet
- Loud dock emptying
iRobot Roomba Plus 575 Combo + AutoWash Dock
Pros
- AI camera obstacle avoidance
- Narrow, low body
- Dock doses cleaning solution
- Edge reaching mop and side brush
- Climbs thresholds up to 35 mm
Cons
- Average mopping on dried stains
- Hair wraps brushes
- Weak on fine dust in carpet
- App settings limited
- Wi-Fi drops reported
Questions buyers ask
Which is better, the iRobot Roomba Plus 405 Combo or the iRobot Roomba Plus 575 Combo + AutoWash Dock?
The iRobot Roomba Plus 575 Combo + AutoWash Dock has a published review score and ranks #23 in our robot vacuums ranking; the iRobot Roomba Plus 405 Combo is not scored yet. Pick the iRobot Roomba Plus 405 Combo for hard floor homes on a deep discount. Pick the iRobot Roomba Plus 575 Combo + AutoWash Dock for small homes with tight furniture gaps.
What is the difference between the Roomba Plus 405 Combo and the Roomba Plus 575 Combo + AutoWash Dock?
Suction: iRobot claims 70x the suction of Roomba 600 series, with 4 levels; Vacuum Wars measured… on the Roomba Plus 405 Combo, 25,000 Pa with four levels (Android.com.pl); iRobot's US page says 3.5X the Roomba Plus… on the Roomba Plus 575 Combo + AutoWash Dock. Navigation: ClearView LiDAR, maps about 1,000 sq ft in 9 minutes and stores up to 4 maps (iRobot)… on the Roomba Plus 405 Combo, ClearView Pro LiDAR with PrecisionVision AI, up to 5 maps, about 9 min to map (iRobot)… on the Roomba Plus 575 Combo + AutoWash Dock. Obstacle avoidance: No obstacle avoidance sensors (Vacuum Wars); BestReviews saw it tangle on cords twice in… on the Roomba Plus 405 Combo, PrecisionVision AI recognizes cords, socks and pet waste (iRobot); Android.com.pl saw it… on the Roomba Plus 575 Combo + AutoWash Dock.
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